Thierno is a distinctive boys' name in United States, ranking #4841 in 2025 with 21 recorded births. The name reached its all-time peak in 2021 with 22 births ranking #4610. Since 1996, the popularity has increased by 320.0%. In 2025, approximately 1 in every 81,337 boys born was named Thierno. STABLE Recent data shows the name is currently stable.